Acanthocrania

Acanthocrania

via iDigBio · CC0 · via iDigBio. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.

On record

Recorded, not inferred
Sits inside
CraniidaePBDB
Diet
suspension feederPBDB, for Craniida
Life habit
epifaunalPBDB, for Craniida
Motility
stationaryPBDB, for Craniida
Vision
blindPBDB, for Craniata
Environment
marinePBDB, for Craniata

Time the record covers

At least 190 million years on record.

The record covers at least 455 Mya to 264.28 Mya. No occurrence read is dated outside 458.2 Mya to 259.857 Mya.

Ordovician — about 49 of 123 occurrencesOrdovicianSilurian — about 0 of 123 occurrencesDevonian — about 14 of 123 occurrencesDevonianCarboniferous — about 4 of 123 occurrencesCarboniferousPermian — about 56 of 123 occurrencesPermian462–455 Mya — about 11 occurrences455–448 Mya — about 32 occurrences448–442 Mya — about 6 occurrences414–407 Mya — about 0.3 occurrences407–400 Mya — about 0.6 occurrences400–393 Mya — about 0.1 occurrences373–366 Mya — about 1 occurrence366–359 Mya — about 11 occurrences359–352 Mya — about 1 occurrence352–345 Mya — about 1 occurrence345–338 Mya — about 0.8 occurrences325–318 Mya — about 1 occurrence304–297 Mya — about 2 occurrences297–290 Mya — about 4 occurrences290–283 Mya — about 1 occurrence283–277 Mya — about 11 occurrences277–270 Mya — about 13 occurrences270–263 Mya — about 20 occurrences263–256 Mya — about 5 occurrences455 Mya264.28 Mya462 Mya256 Mya

123 occurrences of Acanthocrania on record, most of them in the Permian. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.

When

123 occurrences

These are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.

Found in

43 formations

Bell Canyon — 31.92°N, 104.78°WBell Canyon — 31.80°N, 104.78°WBell Canyon — 32.01°N, 104.72°WCathedral Mountain — 30.41°N, 103.11°WCathedral Mountain — 30.39°N, 103.16°WRoad Canyon — 30.38°N, 103.16°WRoad Canyon — 30.39°N, 103.14°WRoad Canyon — 30.35°N, 103.27°WRoad Canyon — 30.35°N, 103.26°WWord — 30.39°N, 103.18°WWord — 30.40°N, 103.14°WWord — 30.34°N, 103.30°WSappington — 46.01°N, 112.54°WSappington — 45.96°N, 111.54°WSappington — 45.88°N, 111.67°WSappington — 45.78°N, 111.73°WSappington — 45.78°N, 111.81°WSappington — 45.91°N, 110.96°WSappington — 45.17°N, 111.79°WDunleith — 42.00°N, 90.50°WNeal Ranch — 30.36°N, 103.13°WNeal Ranch — 30.35°N, 103.14°WBromide — 34.00°N, 97.00°WCherry Canyon — 31.86°N, 104.82°WCherry Canyon — 31.87°N, 104.87°WSlade and Redhill Mudstone — 51.79°N, 4.54°WSlade and Redhill Mudstone — 51.80°N, 4.97°WSlade and Redhill Mudstone — 51.81°N, 4.55°WLouisiana Limestone — 39.45°N, 91.05°WSt. Peter Sandstone — 44.98°N, 93.27°WGlenwood — 44.98°N, 93.27°WPlatteville — 44.98°N, 93.27°WDecorah Shale — 44.98°N, 93.27°WDecorah Shale — 44.95°N, 93.10°WProsser Limestone — 44.98°N, 93.27°WPecatonica — 42.00°N, 90.50°WMifflin — 42.00°N, 90.50°WGrand Detour — 42.00°N, 90.50°WNachusa — 42.00°N, 90.50°WQuimbys Mill — 42.00°N, 90.50°WSpechts Ferry — 42.00°N, 90.50°WIon — 42.00°N, 90.50°WSkinner Ranch — 30.36°N, 103.21°W

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The named rock units Acanthocrania has been recovered from, largest first. Drawn where the rock is now, not where it formed. 19 further formations hold fewer occurrences each and are not listed. 5 occurrences have no formation on record, which is common for older literature.

Acanthocrania and its relatives

Permian

Where Acanthocrania and its relatives were recorded in the Permian.

Found in the same rock

1,551 taxa

The Paleobiology Database records 100 sites for Acanthocrania, and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.

This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.

Entered from

24 references

Each of the 123 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. 12 further references are not listed. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content1

Picture of Acanthocrania

Source
iDigBio
Credit
via iDigBio
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Acanthocrania was found in MorphoSource and Sketchfab.

Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itCraniidae through timeFormations of the PermianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Williams 1943